4581238 has 4 divisors (see below), whose sum is σ = 6871860. Its totient is φ = 2290618.

The previous prime is 4581233. The next prime is 4581251. The reversal of 4581238 is 8321854.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4581238² = 41975483225288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145308 + ... + 1145311.

It is an arithmetic number, because the mean of its divisors is an integer number (1717965).

Almost surely, 2^4581238 is an apocalyptic number.

4581238 is a deficient number, since it is larger than the sum of its proper divisors (2290622).

4581238 is a wasteful number, since it uses less digits than its factorization.

4581238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290621.

The product of its digits is 7680, while the sum is 31.

The square root of 4581238 is about 2140.3826760652. The cubic root of 4581238 is about 166.0839320076.

The spelling of 4581238 in words is "four million, five hundred eighty-one thousand, two hundred thirty-eight".